The key problem areas, particularly with regard to international road transport, are the worsening road safety due to inadequate calibration, absence of social infrastructure along the transit corridors and particularly the ageing of transport means and poor maintenance, which are closely associated with the practice of overloading vehicles.
El problema fundamental, que afecta sobre todo al transporte internacional por carretera, radica en el mantenimiento deficiente, que está estrechamente vinculado a la práctica muy difundida de sobrecargar los vehículos.